Remote Radiator For Rolls-Royce Bergen B32:40-V12 Engine

The Bergen B32:40 series (including V12 configurations) is a medium-speed engine used in propulsion and large genset applications - variants commonly produce several thousand kilowatts of output and are physically large, so their heat rejection is substantial. In installations where there is limited space, strict acoustic requirements, or where exhaust/airflows inside a machinery room are constrained, a remote radiator moves the heat exchanger away from the engine/genset and into a dedicated outdoor or ventilated location. This reduces room temperature rise, lowers noise and enables larger, more efficient radiator cores and fans than possible with engine-mounted radiators.

Remote Radiator System – Technical Specification

• Thermal Duty

Primary duty (jacket water): ~860 kW (per engine spec)

Margin for fouling / safety: Recommend + 10-20% → design for ~950-1,030 kW heat rejection

Ambient conditions assumption: to be confirmed per site (e.g., design for worst-case ambient, altitude, humidity). Use engine manufacturer's data from ISO conditions. pdf.directindustry.com

• Radiator Core

Type: Plate-fin or tubular bar/corrugated core (depending on vendor)

Material: Aluminum (or copper/brass for high-durability), corrosion-protected (optional coating)

Construction: Modular sections for transport / maintenance

Orientation options: horizontal or vertical

• Fluid Circuit

Coolant flow rate: Based on engine jacket water flow (to be measured or taken from engine data sheet - typical medium-speed flow)

Piping: Carbon steel or stainless steel, sized to minimize pressure loss and thermal expansion; supports for thermal expansion required

Expansion tank: Sufficient capacity to allow for expansion, deaeration, and venting

Air separation / venting: Include high-point vents or air-separators to avoid air locking

How to size the remote radiator (practical approach)

1. Start with the engine data sheet. Use the Bergen B32:40-V12 project guide or factory datasheet for rated output and published heat rejection numbers - these are the authoritative inputs. Bergen/Rolls-Royce project guides provide the engine dimensions and performance bands you need. Scribd+1
2. Determine total heat to reject. Heat rejection comes from coolant (jacket water), charge-air cooling and auxiliary cooling circuits. For large medium-speed engines the coolant cooling duty will typically be multiple MW - always calculate from the engine's thermal balance or manufacturer figures rather than guessing. Scribd
3. Allow margin and duty cycles. Add fouling and seasonal margins (10–25% depending on environment), and account for the hottest ambient temperature at site when calculating airflow needs. Serck Heat Exchange
4. Specify redundancy and orientation. For critical power applications use N+1 fan or dual-core solutions, and choose vertical vs horizontal radiator orientation based on footprint and airflow path.